Let f:A→B and g:B→C denotes two function. Consider the following
Let f:A→B and g:B→C denotes two function. Consider the following which one are valid S1: If both f and g are injection then the composition function g o f : A→C is also injection. S2: if g o f :A→C is surjection then g is surjection and f is injection.
- A.
S1
- B.
S2
- C.
S1 and S2
- D.
none
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Correct answer: A
